Black hole boundaries

By I. Booth. 2005

307 citations recorded by the source corpus.

Classical black holes and event horizons are highly nonlocal objects, defined in relation to the causal past of future null infinity. Alternative, quasilocal characterizations of black holes are often used in mathematical, quantum, and numerical relativity. These include apparent, Killing, trapping, isolated, dynamical, and slowly evolving horizons. All of these are closely associated with two-surfaces of zero outward null expansion. This paper reviews the traditional definition of black holes and provides an overview of some of the more recent work on alternative horizons.PACS Nos.: 04.20.Cv, 04.70.s, 04.70.Bw

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/9d47988e5fff9ef6a781fac0ae40d49effcb7fab

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Citations in the corpus

Local Fluid Dynamical Entropy from Gravity (2008, background): “These two conditions single out a 5 dimensional submanifold of non-negative divergence entropy currents in the 7 dimensional space (6.1) of candidate Weyl covariant entropy currents.”
The fluid/gravity correspondence: a new perspective on the membrane paradigm (2010, unknown): “Alternately, several (quasi)local notions of a black hole have been proposed, such as the so-called dynamical horizon [62, 63], which however are spacelike surfaces inside the event horizon, and therefore do not admit the standard notion of evolution.”
Holographic evolution of the mutual information (2011, background): “To this purpose, some generalizations of the concept of horizon have been proposed, and, in our backgrounds we can distinguish between two horizons, the event and the apparent horizon [42, 43, 44].”
Numerical solution of gravitational dynamics in asymptotically anti-de Sitter spacetimes (2013, unknown): “slice, will have vanishing expansion [52, 53].”
Holographic evolution of entanglement entropy (2010, background): “An interesting question for the AdS/CFT correspondence is the possible role of generalized notions of horizon [20,21], like the apparent horizon, in the holographic description of field theory dynamics far from equilibrium.”
Present status of the Penrose inequality (2009, background): “In the smooth part, this tube has been called marginally outer trapped tube [32].”
Extremal surfaces as bulk probes in AdS/CFT (2012, unknown): “[52].”
A Holographic View on Physics out of Equilibrium (2010, background): “62 For a good review of various notions of quasilocal horizons, see [226, 227].”